Aborted colonoscopy

I suffer with anxiety and panic attacks and one of my problems is taking drugs from the doctors I get very anxious as I've seen bad experiences with doctors in my past I don't trust them. I tried explaining this to my nurse and asked for a ct scan but they rather I have colonoscopy. So I said I'd have it so today was the day I went for my colonoscopy I opted for no drugs just gas and air it hurt alot I know my fault but I seriously can't take sedation we got half way through and I moaned and my Dr rudely said we will stop i told him it's OK just give me a minute the bend he went around hurt not the first bend either it was about the third one, but he got really rude and said no were stopping and pulled out which left me annoyed as it was just that bend and the way he talked to me was disgusting the nurses as usual were lovely i can never fault them but I will never see that doctor ever again I was literally crying because of his rudeness and to top it off when I first went in he said  women your age have low iron due to periods so I won't look properly. that might be the case but I told him my periods have never changed and we already found a polyip in my stomach. i wish doctors would stop saying that bowel cancer only happens to older people this isn't true cancer effects every age it also runs in my family they said the same to my mum and she passed in her 30s too so now I have to have a ct scan anyway